Wi-fi could be used to detect weapons and bombs

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Ordinary wi-fi could be used to detect weapons and explosives in public places, according to a study led by the Rutgers University in New Jersey.

Wireless signals can penetrate bags to measure the dimensions of metal objects or estimate the volume of liquids, researchers claim.

Initial tests appeared to show that the system was at least 95% accurate. 

Editor's Comment
A promising step for public schools, but...

For too long, the state of many public schools has been a source of shame. We have all seen the pictures and heard the stories of broken windows, unreliable water and electricity, topped by classrooms that are not fit for proper learning. The establishment of the Education Infrastructure and Management Company Ltd (EIMC) signals that authorities are finally ready to take this problem seriously. We must commend the government for this initiative....

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